Stretch your legs for 20 seconds
Don't they explain it in the video?
Answer: a)Solvents
Explanation: Potential water hazard is the hazard or adverse condition created by the water area when they rise above the limit or due to any other factor. The water hazard usually harms the workers or other people an also the environment.
solvents is considered as a liquid substance that is added to the water to dissolve the components.This in not a preferred method for the controlling of the water hazard.
Relapsing polychondritis is a multi-systemic condition characterized by inflammation and deterioration of cartilage.
Answer:
The answer here would be D.
Hope this helps!